Drive to the argon tower
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When driving, when should the connecting valve between Tower 1 for crude argon and Tower 2 for crude argon be closed?
Put them into operation together? The key question is: are there valves between the gas phases of Tower 1 and Tower 2 for the argon fraction?
You mean the check valve, right? If so, that is used for stabilizing the liquid level. In the argon feeding tower, the liquid air valve is opened to draw out the argon fraction, and this process is repeated until the purity of the crude argon meets the required standards; only then is the argon fed into the refined argon tower. During this time, it is essential to maintain stable operating conditions in the main tower, as well as keep the concentration of the argon fraction within the specified range